NUBANK “Caixinhas” /MAAR

In partnership with São Paulo design studio MAAR, Arthur Machado acted as AI-artist on Nubank’s “Caixinhas” savings feature, delivering a library of brand-perfect images in record time. Forty core photographs, rendered in three formats for two product tiers, were expanded into 120 final assets, all exuding Nubank’s unmistakable purple and a sun-lit, aspirational mood. 

Project Snapshot

Nubank wanted iconography that would turn the idea of “putting money aside” into something people could feel. MAAR’s brief called for photographic visuals that looked shot on location yet could be produced fast enough to meet a looming app-update deadline.

Challenge

Each asset had to land instantly on a small mobile canvas, stay faithful to Roxinho (mass-market) and Ultravioleta (premium) sub-brands, and preserve icon clarity across three aspect ratios. All of this needed to happen without drifting from Nubank’s global brand system, anchored in its now-iconic purple palette and human-centred design language. 

AI-Driven Solution

LoRA models were trained on Nubank’s guidelines, allowing the use of generative tools to “photograph” perfectly centred objects under soft natural light, wrapped in subtle violet gradients. The healthy mix of human art direction and machine iteration meant textures, shadows and depth could be refined at speed, while LoRA kept every pixel on-brand across all 120 outputs.

Outcome

The asset pack rolled out inside the updated Nubank app without a single revision round, earning internal recognition as a benchmark for high-volume, AI-driven asset production.

Credits

Agency: MAAR.Company
Creative Direction: Fábio Simões & Pedro Burneiko.
AI Artists: Arthur Machado, Pedro Burneiko.